Growth and Yield of Black Rice M4 Induced by Gamma-Rays 200 Gy Under Drought Stress

Black rice ( Oryza sativa L. indica) is a functional food with high anthocyanin and dietary fiber content. Drought conditions due to significant climate change can reduce black rice production. Mutation induction using gamma-rays is among the popular approaches to plant improvement with increased ge...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2023-04, Vol.1165 (1), p.12021
Main Authors: Purwanto, E, Parjanto, Mustikasari, W A, Awanis, S
Format: Article
Language:English
Subjects:
Anthocyanins
Climate change
Crop production
Dietary fiber
Drought resistance
drought stress
Flowering
Functional foods & nutraceuticals
Gamma rays
Genetic variability
local black rice
Mutants
mutation
Plants (botany)
Rice
Stress
stress sensitivity index
Tillers
tolerant
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Summary:Black rice ( Oryza sativa L. indica) is a functional food with high anthocyanin and dietary fiber content. Drought conditions due to significant climate change can reduce black rice production. Mutation induction using gamma-rays is among the popular approaches to plant improvement with increased genetic variability for breeding. The research aims to determine the growth, yield, and obtain drought-tolerant mutant black rice. This study used a field experiment method. It planted four selected mutant lines and control plants for each local black rice variety, Bantul, and Boyolali. The results showed that drought stress degraded growth and yield character, such as plant height, shoot dry weight, the number of productive tillers, percentage of filled grain, and inhibited flowering age. Resistance evaluation to drought stress used the stress sensitivity index (SSI). M4-By-200-01, M4-By-200-04, and M4-By-200-04 lines could become short-stemmed black rice and were tolerant to drought stress.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/1165/1/012021